QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#52094#1869. Power Station of ArttricyzhkxAC ✓491ms42388kbC++141.3kb2022-10-04 10:25:092022-10-04 10:25:14

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-10-04 10:25:14]
  • 评测
  • 测评结果:AC
  • 用时:491ms
  • 内存:42388kb
  • [2022-10-04 10:25:09]
  • 提交

answer

# include <bits/stdc++.h>
using namespace std;
int ca[2],cb[2],a[1000010],b[1000010],col[1000010];
bool flag;
char s[1000010],t[1000010];
vector<int> G[1000010];
vector<pair<int,int>> A,B;
void dfs(int u,int c)
{
	if(col[u])
	{
		if(col[u]!=c) flag=0;
		return;
	}
	col[u]=c;A.emplace_back(a[u],(col[u]>0)^s[u]);B.emplace_back(b[u],(col[u]>0)^t[u]);
	ca[(col[u]>0)^s[u]]++;cb[(col[u]>0)^t[u]]++;
	for(int v:G[u]) dfs(v,-c);
}
int main()
{
	int T;
	cin>>T;
	while(T--)
	{
		int n,m,u,v;
		scanf("%d%d",&n,&m);
		for(int i=1;i<=m;i++)
		{
			scanf("%d%d",&u,&v);
			G[u].push_back(v);G[v].push_back(u);
		}
		for(int i=1;i<=n;i++) scanf("%d",&a[i]);
		scanf("%s",s+1);
		for(int i=1;i<=n;i++) scanf("%d",&b[i]);
		scanf("%s",t+1);
		for(int i=1;i<=n;i++) col[i]=0,s[i]=(s[i]=='R'?1:0),t[i]=(t[i]=='R'?1:0);
		bool ans=1;
		for(int i=1;i<=n;i++)
			if(!col[i])
			{
				flag=1;dfs(i,1);
				sort(A.begin(),A.end());
				sort(B.begin(),B.end());
				int sz=A.size();
				if(flag) for(int i=0;i<sz;i++) ans&=(A[i]==B[i]);
				else
				{
					for(int i=0;i<sz;i++) ans&=(A[i].first==B[i].first);
					ans&=((ca[0]&1)==(cb[0]&1));
				}
				A.clear();B.clear();
				ca[0]=ca[1]=cb[0]=cb[1]=0;
				if(!ans) break;
			}
		puts(ans?"YES":"NO");
		for(int i=1;i<=n;i++) G[i].clear();
	}
	return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 2ms
memory: 27208kb

input:

3
2 1
1 2
3 4
RR
4 3
BB
3 2
1 2
2 3
1 1 1
RBR
1 1 1
BBB
3 3
1 2
2 3
3 1
1 1 1
RBR
1 1 1
BBB

output:

YES
NO
YES

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 491ms
memory: 42388kb

input:

25054
5 10
4 5
4 2
4 3
4 1
5 2
5 3
5 1
2 3
2 1
3 1
12 2 9 10 7
RRRBB
10 2 9 7 12
RRBRB
1 0
4
R
4
R
8 4
4 3
1 5
8 5
6 5
7 2 11 10 9 6 3 5
RBRBBRBR
7 2 10 11 6 5 3 9
RBRBBRBR
7 4
7 2
5 1
5 6
5 4
12 5 9 14 5 12 12
RRBRBRR
14 12 9 5 12 12 5
RBBRBRB
10 1
4 6
5 3 2 9 7 3 11 11 6 8
RRRBRRBBBR
5 3 2 3 7 9 1...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
YES
NO
NO
YES
YES
YES
NO
YES
NO
YES
YES
NO
YES
YES
NO
YES
NO
YES
YES
YES
YES
NO
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
YES
NO
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
NO
NO...

result:

ok 25054 lines